06-06-2023, 02:52 PM
Many thanks for all your suggestions, on and offline.
The pump does have a Seven Workshop diaphragm but I guess it could have developed a leak or valve problem. I'll check that next I think.
No I haven't changed the plugs. When it really fails it's not a distinct misfire, more a fluffing and hesitancy... and the stalling. However, I probably should change them just to rule them out.
Distributor drive gear is good, having destroyed a couple of chocolate replacements I now have a good original one back in there. Timing is fine too.
Cylinder head? I didn't think of that. Where do they crack typically? There's no water loss and the head gasket looked to be intact when I changed it.
The pump does have a Seven Workshop diaphragm but I guess it could have developed a leak or valve problem. I'll check that next I think.
No I haven't changed the plugs. When it really fails it's not a distinct misfire, more a fluffing and hesitancy... and the stalling. However, I probably should change them just to rule them out.
Distributor drive gear is good, having destroyed a couple of chocolate replacements I now have a good original one back in there. Timing is fine too.
Cylinder head? I didn't think of that. Where do they crack typically? There's no water loss and the head gasket looked to be intact when I changed it.